ISL61853NIRZ-T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power management integrated circuits (PMICs) are ubiquitous within today’s modern electronic equipment. Along with traditional linear and switch mode regulators, there are a range of specialized devices that provide enhanced protection, improved performance, and better system control. A hot swap controller is one of these dedicated devices and offers the capability to safely insert and remove system components from a live circuit. The ISL61853NIRZ-T from Intersil is a dedicated hot swap controller IC that provides safe board insertion, fault protection, and high power switch drive capability for modern, high performance systems.

Description and Features

The ISL61853 offers the best solution for implementing hot swap control in high performance systems. It integrates a low RDS(ON) N-channel MOSFET, a hot swap controller and several other related functions into a single chip, speeding up system development and reducing cost. In addition, the ISL61853 also offers significant flexibility and a wide range of features. It supports a wide range of Vin values, maximum slew rate control, and fault protection.

• Vin Support: The ISL61853 supports a very broad input voltage range, from 6 to 26V. This wide range allows the system to operate from a wide variety of power sources.
• Maximum Slew Rate Control: This feature allows precise voltage ramping of the hot swap controller. It ensures smooth board insertion and prevents excessive inrush current.
• Fault Protection:The ISL61853 provides complete fault protection for the hot swapped device. It monitors the supply voltage, current, and temperature, and will shut down the supply in the event of an over-temperature, over-voltage, or over-current condition.

Design Considerations

In order to optimize the performance of the ISL61853, the designer should consider the following factors:

• Power Supply Node: The power supply node should be designed to meet the requirements of the ISL61853. This includes sufficient capacitance to minimise supply noise and ripple, as well as inductance and ESR to limit excessive inrush current.
• Bypass Capacitors: The designer should include bypass capacitors across the supply and the enable pins of the ISL61853. This will ensure proper operation under transient conditions.
• Thermal Considerations: Heat dissipation should be addressed to ensure that the temperature of the IC does not exceed its maximum limit. A heat sink or other cooling device may be necessary to ensure proper temperature operation.

Applications

The ISL61853 is suitable for a wide range of hot swap applications, from high current server bays, to 2U ATX power supplies. It is also ideal for next-generation mobile form factor computers and other power-hungry systems. The ISL61853 is well suited for consumer-level commercial or industrial systems due to its wide Vin support, fault protection features, and low external component count.

Conclusion

The ISL61853 from Intersil offers a reliable and cost-effective solution for hot swap control in a wide range of applications. Its wide Vin support, maximum slew rate control, and fault protection features make it an ideal solution for modern high performance systems. With its simple design, low component count, and easy configuration options, the ISL61853 is a great choice for any hot swap control application.

The specific data is subject to PDF, and the above content is for reference